[Bug tree-optimization/67121] [6 Regression] wrong code at -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67121

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk but latent issue on the branches, esp. the gcc 5 branch which
also uses old ranges during VRP2.